Sewing-machine



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SEWING MACHINE.

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UNTTED STATES ATENT OFFICE.

FRANCIS H. RICHARDS OF HARTFORD, CONNECTICUT.

SEWlNG-MACHiNE.

SPECIFICATION forming part of Letters Patent No. 574,574, dated January5, 1897.

Application filed March 21, 1895. Serial No. 542,632. (No model.)

To all whom it may concern.-

Be it known that I. FRANCIS H. RICHARDS. a

citizen of the United States, residing at Hartford, in the county ofHartford and State of Connecticut, have invented certain new andusefullmprovements in Sewing-Machine Feed Mechanism, of which thefollowing is a speci fication.

This invention relates to a sewing-machine feed mechanism, one object ofthe invention being to furnish an improved feed mechanism of simplifiedconstruction and organization, comprising a feed-lever supported nearthe middle portion thereof to have a movement of the ends thereof, andheld as against rotative movement about its longitudinal axis,- and anactuator for imparting movement to opposite ends of said feed-lever.

Another object of my invention is to provide, in connection with apivotally-su pported feed-lever, in feed mechanisms of the classspecified, an improved adj ustably-supported actuator for impartingvariable elliptical movements to the outer end of the feed-lever, and anadjusting device in operative connection with the actuator and operablefor varying the range of elliptical movement of said feed-lever.

In the drawings accompanying and forming part of this specification,Figure l is a front elevation of the operative parts of a sewing-machinewith my improved feed in echanism applied thereto, the framework beingshown in dotted lines and as if in vertical section. Fig. 2 is across-sectional view of a portion of the sewing-machine mechanism, takenin dotted line a a, Fig. 1, and looking toward the right in said figure,parts being Fig. 3 is a plan view, partly in section, of my improvedsewing-machine feed mechanism, said figure showing a feed-lever, afeed-lever carrier or connection by means of which said feed-lever maybe connected to the bed of a sewing-machine, a feed-dogcarried at theworking end of said feed-lever, and a feed-lever actuator in operativec011- nection with the opposite end of said feedlever, the actuatorbeing cross-sectioned on dotted line b b, Fig. 6. In this figure thefeed-dog is shown in full lines in its extreme advancec position, andthe actuator is shown in its extreme retracted position,

an opposite position of said parts being shown in dotted lines. Fig. 4is a cross-sectional view of the feed-lever actuator, taken in dottedline b b, Fig. 6, and showing the actuating-eccentric and itseccentric-strap in the positions they occupy when the feed-dog issubstantially at mid-stroke. Fig. 5 is a horizontal cross-sectionalview, similar to Fig. 4, of the feed-lever actuator, showing the partsthereof in the positions they occupy its lowest position. Fig. 8 is aview similarto Fig. 7, showing the feed-lever-engaging side of theeccentric-strap in its depressed position, or in the position itoccupies when the feed-dog is in its highest or effective position. Fig.9 is a vertical longitudinal section of the feed-lever actuator and theregulator or ad justin g device in connection therewith. This section istaken in a line corresponding with the dotted line 6 6, Fig. 12, whichpasses between theabutting end faces of the two parts of theeccentric-strap of the lever-actuator. Said figure shows theeccentrio-shifting member of the regulator in its lowest position, or inposition for securing the minimum eccentricity to the eccentric and forsecuring to the feed-lever the minimum throw thereof. This figure alsoshows, in full and dotted lines, a portion of the framework of asewing-machine. Fig. 10 is a View, similar to Fig. 9, of the feed-leveractuator and the adjusting device therefor, said figure showing theeccentric-shifting member of the adjusting device in its mid-position,or in position for effecting an increased throw of the eccentric andfeed-lever as compared with the throw attained by said eccentric andfeed-lever when the parts are in the positions shown in Fig. 9. Fig. 11is a View similar to Figs. 9 and 10 of the feed-lever actuator andadjusting device therefor and shows the coeentric-shif ting member oftheadjusting device in its highest position, or in position to securethe maximum throw to the eccentric and feed-lever. Figs. 12, 13, and 1%are cross-sectional views, similarto Fig. 5, of the feed-lever actuator,showing three different positions, respectively, of the parts thereof.

Figs. 12, 13, and 1% correspond, in so far as the vertical position ofthe eccentric-shifting member of the adjusting device relatively to theeccentric is concerned, to Figs. 9, 10, and 11, although the lateralposition of the eccentricshifting member is different in Figs. 13 and14: from the position of said members shown in Figs. 10 and 11, thischange in the latter positions of the eccentric-shifting member beingeffected by the rotation of the feedlever actuator. Figs. 15 and 16 areplan and side views, respeetively,of the eccentric-shifting member ofthe feed-lever actuator. Fig. 17 is an isometrical perspective view ofthe eccentric-strap for the eccentric shown in Figs. 15 and 16; and Fig.18 is a cross-sectional view, taken in dotted line (Z d, Fig. 9, lookingtoward the right hand in said figure and showing the adjusting memberfor the eccentric-shifting member of the feed-lever actuator.

Like characters designate like parts in all the figures of the drawings.

In the drawings only so much of a sewingmachine is shown as is deemednecessary for clearlyillnstrating the application and mode of operationof my present improvements.

Briefly, the sewing-machine illustrated in the drawings comprises aframework, (shown in dotted lines, Fig. 1, and designated byF,) whichframework may be of any suitable construction for carrying the workingparts of the machine; a vertically-reciprocating needlebar N, carrying aneedle N; a horizontal needle-bar-actuating shaft 1), journalcd insuitable hearings in the framework and operatively connected with theneedle-bar; a revoluble shuttle or loop-taker S, peripherally supportedat an inclination to the path of movement of and below the needle-bar,preferably by means of peripherally-disposed track-rolls 27, carried bysuitable studs or carriers connected'with a bracket constituting theframework of the machine, a horizon tally-disposed shuttle-actuatingshaft 1); a revoluble driver H, carried by said shaft in position andadapted for engaging and rotating the shuttle; an intermediate shaft Doperativel y connecting the n eedle-bar-actuating shaft D andshuttle-actuating shaft D; a train of gears E, operativel y connectingthe intermediate shaft D and needle-baractuating shaft D; a train ofgears E, connecting the intermediate shaft D and sl1uttleactuating shaftD, and feeding mechanism supported intermediate to theneedle-bar-actuating shaft D and shuttle-actuating shaft 1) andoperatively connected with the intermediate shaft D The construction andorganization of all the parts of the sewing-machine, with the eX-ception of the sewing-machine feed and its actuating and regulatingdevices, may, in a general way, be substantially the same as like partsshown and described in my prior application, Serial No. 531,931, filedDecember 15, 1894, to which reference may be had.

It will be obvious that my improved feed mechanism, which is theprincipal constituent of my present invention, is applicable to varioustypes of sewing-machines, and that, therefore, the invention is notlimited to a machine of the kind illustrated.

In the preferred form thereof herein shown and described the feedmechanism, per 86, comprises a feed-lever, (designated in a general wayby L,) which is preferably pivtotally supported approximately midway ofits length for elliptical movement at opposite ends thereof and held asagainst rot-ative movement about its longitudinal axis; a feed-dogcarried at the outer or feed end of said feed-lever; a feed-leveractuator (designated in a general way by L) embodying anadjustably-supported eccentric having an eccentric-strap in operativeconnection with one end of the feed-lever and the shaft 1) for saideccentric, and a feed-adjusting device (designated in a general way byR) comprising an eccentric'adjnsting member or wedge W in engagementwith the eccentric of the actuator and adapted for changing theeccentricity of said eccentric, and a wedge operating device (designatedin a generalway by G) in engagement with and adapted for shifting thewedge or eccentric adjusting member V to increase or decrease theelfective throw of the eccentric and for holding said wedge in itsshifted position.

The feed-lever L, which may be, in a general way, of any suitableconstruction, is shown having a so-called two-way pivotal connectionnear the middle portion thereof with some part of a sewing-machineframe, as shown in full and dotted lines at U, Figs. 1, f3, and 6 of thedrawings. The pivotal connection is herein shown in the nature of afeed-lever carrier (designated by U) having a horizontal pivotalconnection with some part of the sewing-machine frame F and having avertical pivotal connection with the feedlever L, as will be readilyunderstood by reference to said Figs. 3 and U.

The feed-dog 2, which may be of any suitable general conformation, isshown pivotally mounted on the screw or stud 00 at the forward orworking end (herein shown as the left-hand end) of the feed-lever L andas provided with an enlarged hole or opening 3 near its rear end toreceive the shoulder of ascrew 1 inserted in the feed-lever, whereby aslight play or'movement of the dog is permitted, and said feed-dog isshown having means in connection therewith and in eonnection with thefeed-lever for maintaining the feed-dog during operation in substantialparallelism with the line of its longitudinal movement. This means, inthe form thereof herein shown, consists of a link 2 in paralleldisposition relative to the longitudinal axis of the feed-lever andpivotally connected at one end to the feed-dog and pivotally connectedat the opposite end thereof to the feed-lever carrier, as most clearlyshown in Figs. 3 and 6 of the drawings.

The feed-lever actuator L, which constitutes an important factor in mypresent invention, comprises a driver or rotative eccentric-actuatingshaft D a variable eccentric 3, carried upon a wedge-likeeccentric-adjusting member \V, carried upon the shaft oreccentric-actuator D and shiftable longitudinally of the axis ofmovement of said shaft and eccentric, said eccentric having a peripheralobliquely-disposed strap-receivin g groove or guideway 3', and anannular eccentric-strap 4, carried on the obliquely-disposed guidewayand having a perimetrically-disposed extension having a universalconnection with the feed-lever L.

As a means for adjusting the eccentric 3 transversely of thedriving-shaftD to thereby change the effective throw of said eccentric,I have provided in connection with the eccentric 3 an eccentric carryingand adjusting member or wedge W, which in the form thereof herein shownis in the nature of a sleeve shiftably mounted for longitudinal adjustment upon the driving-shaft-D and having at the lower'end thereof anobliquely or eccentrically disposed wedge portion 6, extending into abore 7, which is formed through the eccentric 3 in the plane of andobliquely to the axis of rotation of said eccentric, as will be readilyunderstood by reference to Figsl 9 to 14, inclusive, of the drawings,and as a means for shifting the wedge to change the eccentricity of saideccentric I have provided a so-called wedge-operating device oreccentric shiftingmemberadjusting device G in operative connection withand adapted for shifting said wedge W or eccentric-shifting memberlongitudinally and for holding said wedge or member W in its shiftedposition, as hereinafter more fully described.

As a'means for s curing the eccentric 3 as against longitudinal movementrelative'to the shaft D said eccentric is shown in Fig. 9 supportedbetween a bevel-gear 61 which is shown fixed to the lower end of theshaft D and a journal-bearing 7, surrounding the middle portion of theeccentric adjusting member WV.

' In practice the eccentric 3 will have at the under side thereof, aslide 8, to fit a corresponding siideway (not shown) in the upper faceof the gear (P, and the eccentric-adjusting member W will usually beloosely mounted upon the shaft D as shown in the drawings, (see Figs. 9,10, and 11,) it being held against rotation relativel y to the shaft Dand rotating with said shaft by reason of the oblique disposition of thewedge portion 6 of the eccentric-adjusting member relatively to theeccentric 3, which, as before stated, will have a sliding engagementwith the gear d It will be evident that owing to this obliquedisposition of the wedge relatively to the axis of rotation of theeccentric 3 and the shaft D the shaft D cannot rotate without carryingthe eccentric 3 and the eccentric-adjusting member WV with it.

The wedge-operating device for adjusting and locking theeccentric-adjusting member or wedge \V, in the preferred form thereofherein shown and described, is in the nature of a stud 9, journaled forrotary movement in a bearing 10, (see Fig. 9,) formed in the frame F,and said stud has an eccentrically-disposed crank-pin 11 at the innerend thereof, which engages in a peripheral groove 13 in a collar 14,fixed to the upper end of the eccentricadjusting member XV, said collarbeing preferably fixed to said member 1V by means of a set-screw 15, asshown in said Fig. 9. This wedge operating and holdingdevice willusually be removably secured in the bearing 10 by means of asliding boltor pin 16, shiftably carried in a transverse opening 17, formed into thestud 9,-and normally projecting beyond the outer face of said stud andentering an annulargroove 18, formed in the inner face of the bearing10.

The sliding bolt 16 is normally held in engagement with the walls of theannular groove 18 by means of a bolt-shifting screw or member 20, havinga conically-tapered innerend, and which hasa screw-threaded bearing in alongitudinal screw-threaded opening formed in the outer end of the. stud9 and intersecting the recess in which the sliding bolt is seated, saidbolt-shifting screw having a pcripheral bearing at its inner end againstthe inner end of the sliding bolt and being adapted for longitudinaladjustment to release the sliding bolt 16 from or force the same intoengagement with the walls of the annular groove 18, said screw 20 beingprovided at the outer end thereof with a knurled head by which the samemay be turned to effectthe requisite adjustment thereof.

It will be obvious that any form of boltshifting member may be employedto actuate the sliding bolt of the wedge-operating device G to lock thesame in operative position in the journal-bearing 10.

By the construction and organization of wedge-operating device as hereindescribed the same may be quickly assembled and dis assembled relativelyto the eccentric-adjusting wedge WV.

The eccentric-strap 4, which is carried on the guideway of the eccentricand surrounds the same, and which is shown made in two parts boltedtogether in the usual manner, has a perimetrically-disposed extension25, in the side face of which is formed a ball-receiving socket adaptedfor receiving a ball 27 upon the inner end of the feed-lever L.

As a means for assembling the ball-andsocket connection, comprising theball-socket 26 and ball 27, the socket 26 is open and conically flaredat that side of the extension next adjacent the feed-lever, as mostclearly shown in Figs. 4, 5, 12, 13, 14: and 17, and one side wall ofsaid socket is transversely bored and screw-threaded, as shown at 29, toreceive a screw 30, the inner end of which is cupped or concaved, asshown in dotted lines in Fig. 12, to correspond with the curvilinearadjacent face of the ball 27 on the feed-lever L, said cupped-shaped endof the screw forming abearing for one side of said ball and holding thesame in place in socket 26 and facilitat ing the take-up of wear. Bythis construction and organization of ball-andsockct connectiou thefeed-lever may be quickly disconnected from the eccentriestrap byreleasing the screw 3 from the engagement of ball 27 of said lever andpartially rotating the eccentric-strap to draw the same away from theend of the feed-lever.

By comparison of the several figures of the drawings it will be seenthat the eccentricstrap at each point of connection with the feed-leverwill during the rotation of the eccentric have a continuous circuitousmovement in an elliptical path, which will cause the inner and outerends of the feed-lever, owing to the pivotal support of said feed-leverat the middle portion thereof, to describe an ellipse, the major andminor axes of which may be varied in length by adjusting the eccentric 3transversely of the shaft D to increase or decrease the effective throwor eccentricity thereof. This change in the eccentricity of theeccentric may, as hereinbefore stated, he quickly effected by shiftingthe eccentric-adjusting wedge or member \V longitudinally of the shaft Dand longitudinally of the axis of rotation of the eccentric through themedium of the wedge-operating device G.

By reference to Figs. 3 and 7 of the drawings it will be seen that thefeed-lever L has, as before stated, a universal connection-to wit, aball-and-socket connection-with the eccentric-strap at one side only ofand remote from the axis of movement of said eccentric, and by reason ofthis one-side connection and by reason of the peculiar circuitousmovement of the eccentric-strap, due to the peculiar organization of theeccentric and the eccentric-strap, as before described, a trulyelliptical movement is imparted to the outer ends of the feed-leverwithout imparting rotative movements to the feed-lever about itslongitudinal axis.

By employing an eccentric having an obliquely-disposed eccentric-strapand connect-- iug the feed-lever by a universal connection, asdescribed, to the eccentric-strap at one side only of the axis ofrotation of the eccentric I secure a continuous uniform ellipticalmovement to the end of the feed-lever, and consequently a correspondingmovement to the feed-dog at the working end of said feed-le- It 57d,574;

ver. The ball-and-socket connection, while preventing lost motionbetween the eccentricstrap and feed-lever, permits afree movement ofthis end of said feed-lever in an elliptical path, due to the motionimparted to the eccentric-strap by the eccentric.

From a practical operation of my improved feed mechanism in connectionwith a sewingmachine it has been fully demonstrated that a feed-leverhaving a uniform continuous feed movement in an unbroken ellipticalpath, as herein described, has material ad vantages over the ordinaryfour-way feed mechanism, in that the feed-dog carried by the feed-leverengages the fabric with a gradually increasing pressure during the firststages of the advancing movements thereof and releases the cloth with agradually-decreasing pressure during the latter stages of said advancingmovement, which effects a uniform feed movement of the fabric without,as in some cases, so tightly impinging the fabric between thepresser-foot and feeddog on the inauguration of the feed movementthereof as to cause the fabric to buckle or feed unevenly.

Furthermore, by the use of a feed-lever aetuator embodying an eccentricand an eccentric-strap relatively organized and connected to thefeed-lever in the manner shown and described I not only secure adifferent movement to the feed-lever than is secured to the feed-leverof any ordinary feed mechanism employing a two-way cam or cams foreffecting the feed movement of the feed-lever, but also secure a smooth,unabrupt, and practically noiseless movement to the feed-lever, incontradistinction to the abrupt noisy movements of the feed-lever of anyordinaryfeed mechanism.

No claim is herein made to the combinations of shafts and gearing foractuating the needle-bar and the shuttle, as such subject matter iscovered in my application filed Dceember 15, 1894, Serial No. 531,931.

Having thus described my invention, 1 Claim- 1. The combination with afeed-lever, and with a feed-dog pivotally mounted on said feed lever; ofan actuator for imparting movements to said feed-lever; and vibratorymeans for holding the feed-dog in parallelism with the plane of thelongitudinal movement of said dog.

2. The combination with a feed-lever, and with a feed-dog pivotallymounted on said lever; of rotative mechanism constructed and arranged toimpart an elliptical movement to the feed end of said lever; and avibratory device for holding the feed-dog in parallelism with the planeof the longitudinal movement of said dog.

3. A feed mechanism of the class specified, comprising a suitablysupported lever; a feed-dog carried by said lover; a rotativeactuating-eccentric universally connected with one end of said lever,and adapted to impart .lever, -for maintaining the feed-dog insubstantial parallelism with the line of its longitudinal movement.

5. The combination with a sewing-machine feed-lever, and means forimparting thereto elliptical movements; of a feed-dog pivoted to saidlever, and directly carried thereby; and a link having a movementconforming to the motion of the lever,'for maintaining the feed-dog insubstantial parallelism with the line of its longitudinal motion.

6. The combination with a sewing-machine feed-lever, and means foractuating the same; of a feed-dog pivotally mounted on the free end ofsaid lever, and provided with an opening back of its pivotal point; adevice passing through said opening, and permitting a slight play of thedog thereon; and means for maintaining the feed-dog in substantialparallelism-with the line of its longitudinal motion.

7. The combination with a sewing-machine feed-lever; an eccentricuniversally connected to said lever, and serving to impart to the sameelliptical movements; of a feed-clog pivotally mounted on the free endof the lever; and a link connecting said dog with the feedlever-carrier,and serving to maintain said dog in substantial parallelism with theline of its longitudinal movement.

8. The herein-described feed mechanism for sewing-machines; itconsisting of a feedlever supported, approximately midway of itslength,for vertical and horizontal oscillations; a feed-actuating shaft;an eccentric carried by said shaft, and adapted for adjustment,transversely of said shaft; an eccentric-strap revolubly carried by saideccentric, in a plane oblique to the axis thereof; a universalconnection between said eccentric-strap and feedlever; an eccentrio-shifting member shiftabl y carried upon the feed-actuating shaft,and in operative connection with the eccentric, and adapted for shiftingsaid eccentric, transversely of said shaft; and an adjusting device inoperative connection with said eccentric-shifting member, and adaptedfor shifting said member longitudinally of the shaft, to effect achangein the elfective throw of the eccentric, substantially as described, andfor the purpose set forth.

9. In a sewing-machine feed mechanism, a feed-lever supported near itsmiddle portion for elliptical movement at the feed end thereof, and heldas against rotative movement about its longitudinal axis; combined witha rotative actuator comprising a shift-able eccentric having anobliquely-disposed eccentric-strap surrounding the periphery thereof,and so connected with one end of the feedlever as to impart, during therotation of the eccentric, an elliptical movement to the feed end ofsaid feed-lever, without rotating said feed-lever upon its longitudinalaxis; a driver for rotating said eccentric; and an adjusting device inoperative connection with, and adapted for shifting, said eccentrictransversely of the driver, to increase or decrease the eccentricitythereof, and effect a change in the range of elliptical movement of thefeed end of the feed-lever.

10. The herein-described feed mechanism for sewing-machines, itcomprising a feed-lever pi votally supported near its middle portion forelliptical movement at the feed end thereof, and held against rotativemovement about its longitudinal axis; a variable eccentric; an annulareccentric-strap movably carried on the periphery of said eccentric in aplane oblique to the plane of rotation of the eccentric; a universalconnection between the feed-lever and eccentric-strap located at oneside only of the axis of movement of said eccentric, and adapted fortransmitting an elliptical movement to the end of the feedlever; andadjusting means for effecting a change in the effective th row of saideccentric.

11. In a sewing-machine feed mechanism, a feed-lever supported midway ofits length for elliptical movement at the ends thereof, and held asagainst rotative movement about its longitudinal axis; combined withcontinuous rotary-motion feed-lever-actuatin g mechanism,for im partingan elliptical movement to the ends of the feed-lever, and comprising anactuating-shaft; an eccentric rotative with, and shi ftable transverselyof,said shaft; an eccentric-adjusting wedge interposed between theeccentric and actuating-shaft; an eccentric-strap peripherally carriedby, and at an inclination to the path of movement of, said eccentric; aball-and-socket connection between the eccen trio-strap and feed-1ever;and means for adjusting the eccentric-adjusting wedge longitudinally ofthe actuating-shaft, to effect a change in the effective throw of theeccentric, whereby a change in the range of elliptical movement of theends of the feedlever is attained.

12. The combination with a feed-lever carrier pivotally supported in abearing, of a feed-lever pivotally supported for oscillation remote fromthe outer end of said carrier; a feed-dog pivotally carried foroscillatory reciprocation at one end of said feed-lever; a link inparallel disposition relatively to the feed-lever, and connecting thefeed-dog and feed-lever carrier, and adapted for holding the feed-dog inparallelism with the line of its longitudinal movement; and an actuatorin operative connection with the opposite end of said feed-lever, andadapted for imparting vertical and horizontal oscillations to saidfeed-lever.

13. The combination with a feed-lever piv- IIO 'ota-lly supported foroscillation by a carrier pivotally carried for oscillations in abearing, of a feeddog pivotally carried at one end of the feed-lever; alink in parallelism with the feed-lever and pivotally connected at oneend thereof to the carrier and at its opposite end to the feed-dog, andadapted for maintaining the feed-dog in parallelism with the line of itslongitudinal movement; actuating means for imparting vertical andhorizontal oscillations to the feed-lever and connected link; and aregulating device for changing the effective throw of said feed-lever.

14:. In a sewing-machine the combination with a reciprocatory needle-barand its horizontally-disposed actuating-shaft and with a revolnbleshuttle and its horizontally-disposed actuating-shaft, of a feedmechanism comprising a vertically-disposed shaft in operative connectionwith the two aforesaid horizontally-disposed shafts; afeed-leveractuating device carried by the vertical shaft; a feed-leverfulcrumed near the middle portion thereof for vertical and horizontaloscillations, and having one end thereof in operative engagement withthe said device; a feeddog pivotally carried at the opposite end of saidfeed -lever; and a link pivotally supported at one end in alinement withthe fulcrum of the feed -lever and pivotally connected at the oppositeend with the feed-dog and adapted for maintaining the feed-dog inparallelism with the line of its longitudinal movement.

15. In a sewing-machine the combination with a suitable frame having abed-plate, of a f ced-lever carrier pivotall y carried in a horizontalbearing below, and in connection with, the bed of the machine; afeed'lever pivotally supported for horizontal oscillation remote fromthe extreme outer end of said carrier; a feeddog pivotally carried forhorizontal oscillation atone end of said feed-lever and operativelyconnected with the extreme outer end of said carrier by means of a linkin parallel disposition relatively to the feed lever; afeed-lever-actuating device in operative conl nection with the oppositeend of the feed-lever and adapted for imparting horizontal and verticaloscillations to said feed-lever; and means in connection with; andadapted for actuating, said device.

16. In a sewing-machine the combination with a suitable frame having abed-plate, of a f eed-lever carrier pivotally mounted in a horizontalbearing below, and in connection with the bed of the machine; afeed-lever pivotally supported for horizontal oscillation remote fromthe extreme outer end of said carrier; a feed-dog pivotally carried atone end of said feed-lever and operatively connected with the extremeouter end of said carrier by means of a link in parallel dispositionrelatively to the feed-lever; a feed -1everactuating device shiftablycarried by a drivil'ig-shaft and in operative connection with theopposite end of the feed-lever and adapted for imparting vertical andhorizontal oscillations to said feedlever; a driving-shaft in operativeconnection with said device; and means for regulating the effectivemovement of said lever, to increase or decrease the throw of the lever.

17. In a sewing-machine the combination, with the framework thereof, ofa feed-lever supported for vertical and horizontal oscillations; afeed-dog pivotally carried by said feed-lever; an actuatingshaft; afeed-leveractuating device carried by, and shifta-ble transversely of,said shaft; a sliding wedge in engagement with said feed-lever-actuatingdevice and adapted for shifting the same transversely of said shaft, tochange the throw thereof; and a regulating device comprising a studjournaled for rotation in t-heframc and having an eceentrically-disposedpin at one end thereof in engagement with the sliding wedge; and a boltcarried by the stud in movable engagement with an annular groove formedin the bearing in which the stud is seated.

FRANCIS II. RICHARDS.

\Vitnesses:

FRED. J. DOLE, R. W. PITTMAN.

